The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 1994
Filed:
Aug. 12, 1992
Rajendra P Rathi, West Chester, OH (US);
David C Fairbourn, Fairfield, OH (US);
Joseph H Nurre, Athens, OH (US);
General Electric Company, Cincinnati, OH (US);
Abstract
A method and system for machining a contoured surface of a part, such as a vane of a vane segment of a nozzle ring in a gas turbine engine. A plurality of original data points from the original surface of the vane are sensed. The system comprises an algorithm for creating a matrix of data and for generating a revised contour profile corresponding to the cross-sectioned contour of the vane for points which lie in a common plane. The original contour may have missing sections in its profile or may have areas where brazing material has been applied to the vane. The revised contour profile is adjusted in accordance with certain predefined parameters. The revised contour profile is also adjusted so that all of its points lie on or inside the perimeter shape defined by the original data points. All of the revised contour profiles associated with each cross-section of the vane is compiled to generate one machining contour. The system includes a machining station which machines the vane in accordance with the machining contour.